Home / 77,455,629.84-116,222,635.80-31,408,257.36

Finding the Fourth Proportional to 77,455,629.84, 116,222,635.80 and 31,408,257.36

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Solution

The fourth proportional to 77,455,629.84, 116,222,635.80 and 31,408,257.36 is: 47,128,278.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,455,629.84 : 116,222,635.80 = 31,408,257.36 : x
  2. Step 2: Convert to fraction form
    77,455,629.84/116,222,635.80 = 31,408,257.36/x
  3. Step 3: Cross multiply
    77,455,629.84x = 116,222,635.80 × 31,408,257.36
  4. Step 4: Simplify right side
    77,455,629.84x = 3,650,350,456,263,949.50
  5. Step 5: Solve for x
    x = 3,650,350,456,263,949.50/77,455,629.84
  6. Step 6: Final answer
    x = 47,128,278.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.